How weird.
@mattinglot and Ryan and I were working on this a little while ago, and I thought we had all the fixes into v506:
I just started a build on v507. That should be up soon. It shouldn’t be more than a day’s difference, but it would be great to know if this version is still doing it.
There is another archim user (@mperino) with suspiciously similar issues: Tuning Drive Strength and Steps per MM on Archim 1 for V506
And I know @vicious1 has one. We worked pretty hard to get the last one up and running. It is disappointing this one isn’t just working.